Cost-oriented component redundancy allocation for a communication system subject to correlated failures and a transmission reliability threshold

Abstract

Transmission quality of a communication/computer system is a high-level objective of system supervisors. Therefore, transmission reliability improvement or optimization is an important issue for many organizations. One way to maximize transmission reliability is to model the system as a stochastic communication network including arcs and nodes and then determine the optimal component redundancy allocation. However, modern components are highly reliable. Thus, a decision maker may be more concerned about cost than reliability. This article considers cost-oriented component allocation subject to a reliability threshold and correlated failures characterized by a correlated binomial distribution model. To solve this problem, we employ a genetic algorithm to search for the optimal component redundancy allocation possessing minimal allocation cost. The computational efficiency of the genetic algorithm-based method is demonstrated through several benchmark networks and compared against several popular soft computing algorithms.

Optimal allocation of product reliability using novel multi-population particle swarm optimization algorithm

“…Yi et al 7 set up the model to minimize the system cost of power-shift steering transmission and showed the efficiency of the model. Yeh et al 8 allocated the component reliability for minimizing allocation cost and demonstrated the model through several benchmark networks. These studies mainly adopted research and development (R & D) expense as allocation objective of the model, which may cause the allocated subsystem reliability conservatively and can barely meet the product demand.…”

Research on the Reliability Allocation Method of Smart Meters Based on DEA and DBN

“…In [5], the system reliability-redundancy allocation with a cold standby strategy is considered, and an enhanced ENCOA optimization algorithm is proposed. In [6], the polynomial cost function of reliability allocation is discussed, and the geometric programming method is found in the cost function and reliability constraint, considering all its properties of multivariate monotonicity and convexity. A reliability allocation model based on expert knowledge and gray system theory is proposed in [7].…”